clocking the center housing...

Rebuilt my t3 42/48. But I never was able to rotate the center housing. Is there a way to break it loose? Every bolt except the two bitch bolts are out and the bitch bolts are loosened. I sprayed some wd40 but didn't go overboard. I was wacking the hell out of it, but I don't want to wack it too hard and throw it out of balance.

So any ideas. I need to figure this out so I don't blow the seals....again.